Is water cooling really necessary?

[MPNick]

I interpreted race cars as "race cars", not hondas or toyotas with bolt-ons.

Anwyway, I think the MSP's turbo would be much happier with the benefit of water cooling. Do you agree or disagree?

I do not know for sure. You would think that the water does cool down the center section some. However you also need to look at the way things have changed. Oil for one is much better now. The new roller bearing turbo do not seem to last as long as the old style bushing bearing turbo. They do spool up faster but they are not lasting longer, in fact they do not last as long. I have seen the old oil feed only turbos last over 100,000 miles on some cars. Idled before shut downs and Mobil 1 oil changed every 3,000 miles goes a long way for saving turbos, not only engines.

OK I got some info from Garrett. The cage in the roller bearing that keeps the bearings spaced does not like heat. The cage will fail from not having the coolant lines installed, it may take few miles but it will fail and then take out the bearing. So I gues that this means you cannot/ should not run without the coolant lines.

 

[wiredone]

from what i know of forced induction and from everything i have heard from both representatives of IHI and Garret on most turbo's coolant lines are not necessary. The guys at IHI i know for sure say that i will prolong life a little bit bit simply because not for cooling, but because when you start the car they bring the turbo up to operating temperatures quicker, causing less shaft play and less damage etc...

the guys at garret at haisy because they say that some of there premium turbo's for passenger cars use it more for the same purpose but they say that without the coolant flowing through the empty space for the coolant lines can create hot spots within the housing..

the end ploy i spose is "its up to you"

my IHI has run without coolant lines from day one, as most other Hiboost peoples has but i can't give people definitive advice on the garrets as i dnt run one without coolant lines, havent had one without coolant lines blow and therefore can't say whether its a bad thing or not...

my 2c

 

[mspdfreak]

I say bypass the coolant. I'd love to see the performance gains.

 

[Demonic-Speed]

How are you going to see performance gains from the lack water?

 

[rocketspeed]

Here is the performance gain: 0

 

[mspdfreak]

I was being sarcastic.

 

[rocketspeed]

I think someone disconnected your coolant lines.

 

[Demonic-Speed]

I was being sarcastic.

Just checking